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    <authors>
      <author>Timmis, Robin J. L.</author>
      <author>Fitzpatrick, Colm R. J.</author>
      <author>Kennedy, Jonathan P.</author>
      <author>Huddleston, Holly M.</author>
      <author>Denis, Elliott</author>
      <author>James, Abigail</author>
      <author>Baird, Chris</author>
      <author>Symes, Dan</author>
      <author>McGonegle, David</author>
      <author>Atonga, Eduard</author>
      <author>Martin, Heath</author>
      <author>Rebenstock, Jeremy</author>
      <author>Neely, John</author>
      <author>Lee, Jordan</author>
      <author>Redfern, Joshua</author>
      <author>Bourgeois, Nicolas</author>
      <author>Finlay, Oliver</author>
      <author>Ruskov, Rusko</author>
      <author>Astbury, Sam</author>
      <author>Hawkes, Steve</author>
      <author>Zhang, Zixin</author>
      <author>Zepf, Karl Matthäus</author>
      <author>Krushelnick, Karl</author>
      <author>Gumbrell, Edward</author>
      <author>Rajeev, Paramel Pattathil</author>
      <author>Yeung, Mark</author>
      <author>Dromey, Brendan</author>
      <author>Norreys, Peter</author>
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    <subsidiary-authors>
      <author>LTB</author>
    </subsidiary-authors>
  </contributors>
  <titles>
    <title>Efficiency-optimized relativistic plasma harmonics for extreme fields</title>
    <secondary-title>Nature</secondary-title>
  </titles>
  <periodical>
    <full-title>Nature</full-title>
  </periodical>
  <publisher>Nature Publ. Group</publisher>
  <pub-location>London [u.a.]</pub-location>
  <isbn>0028-0836</isbn>
  <electronic-resource-num>10.1038/s41586-026-10400-2</electronic-resource-num>
  <pages>1153 - 1158</pages>
  <number>8112</number>
  <volume>652</volume>
  <abstract/>
  <notes>
    <note> This article is licensed under a Creative Commons Attribution 4.0 International License. ; </note>
  </notes>
  <label>PUB:(DE-HGF)16, ; 0, ; </label>
  <keywords/>
  <accession-num/>
  <work-type>Journal Article</work-type>
  <dates>
    <pub-dates>
      <year>2026</year>
    </pub-dates>
  </dates>
  <accession-num>GSI-2026-00619</accession-num>
  <year>2026</year>
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      <url>https://repository.gsi.de/record/367115</url>
      <url>https://doi.org/10.1038/s41586-026-10400-2</url>
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